Table 1.

Schematic of stepped wedge cluster randomized trial for the CORE study

	Follow‐up time
Arms	Wave 0	Wave 1	Wave 2	Wave 3
	Baseline	9 months	18 months	27 months
1	0	9 months	18 months	27 months
2	0	0	9 months	18 months
3	0	0	0	9 months

Note: 0 = control phase; 9, 18, 27 months = intervention phases (indicates the length of time since the start of the intervention).

Arm is the allocation of group of clusters/individuals. Three clusters were randomized to each arm.